Information leakage in three-party simultaneous quantum secure direct communication with EPR pairs

被引：15

作者：

Wang, Lian-Ying ^{[1
]}

Chen, Xiu-Bo ^{[1
]}

Xu, Gang ^{[1
]}

Yang, Yi-Xian ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Informat Secur Ctr, State Key Lab Networking & Switching Technol, Beijing 100876, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2011年 / 284卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Quantum secure direct communication; Quantum cryptography; Information leakage; CRYPTOGRAPHY;

D O I：

10.1016/j.optcom.2010.11.053

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In 2007, Wang et al. [M. Y. Wang and F. L. Yan, Chin. Phys. Lett. 24 (2007) 2486] proposed a three-party simultaneous quantum secure direct communication (3P-SQSDC) scheme with EPR pairs. Recently. Chong et al. [S. K. Chong and T. Hwang, Opt. Commun. OPTICS-15438 (2010(online))] proposed an enhancement on Wang et al.'s scheme. The communications in Chong et al.'s 3P-SQSDC can be paralleled and thus their scheme has higher efficiency. However, we find that both of the schemes have the information leakage, because the legitimate parties' secret messages have a strong correlation. This kind of security loophole leads to the consequence that any eavesdropper (Eve) can directly conjecture some information about the secrets without any active attack. (C) 2010 Published by Elsevier B.V.

引用

页码：1719 / 1720

页数：2

共 18 条

[1] Deterministic secure direct communication using entanglement -: art. no. 187902 [J].